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OfflineKanadian
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Registered: 09/23/15
Posts: 27
Last seen: 7 years, 10 months
Vacuum chamber as a pressure cooker?
    #22288306 - 09/25/15 12:55 PM (8 years, 4 months ago)

I have seen many articles about converting a pressure cooker into a vacuum chamber but would this work the other way ,,, I don't have a pressurebcooker yet and I'd really prefer to avoid buying one if this will work safely

I have a large vacuumed chamber and it reg sucks to -29 (6cfm  vac) it also has a heating mat that goes up to 100° so would the temp under vac achieve the same result?


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OfflineKanadian
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Registered: 09/23/15
Posts: 27
Last seen: 7 years, 10 months
Re: Vacuum chamber as a pressure cooker? [Re: Kanadian]
    #22288358 - 09/25/15 01:06 PM (8 years, 4 months ago)

Also if this will work , does anyone know of any links or info regarding time frames /heat under vacuum to achieve sterilization


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Offlineblackout
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Re: Vacuum chamber as a pressure cooker? [Re: Kanadian]
    #22288411 - 09/25/15 01:21 PM (8 years, 4 months ago)

Water will boil at lower temperatures under vacuum, the opposite of what you want.


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OfflineKanadian
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Re: Vacuum chamber as a pressure cooker? [Re: blackout]
    #22288431 - 09/25/15 01:25 PM (8 years, 4 months ago)

OK so no go on the vc lol


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Invisibleb92ma
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Registered: 04/30/15
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Re: Vacuum chamber as a pressure cooker? [Re: Kanadian]
    #22288457 - 09/25/15 01:32 PM (8 years, 4 months ago)

a pressure cooker works great as a vacuum drier. It will dry whatever you put in there at room temp in a pretty short time.

Care must be used to assure your seal does not rupture, although you would probably just lose vacuum and it would not implode.

I use a spray gun paint pot to vacuum small samples. Remove the gun part. They are aluminum and will hold the vacuum very well.

Anaerobic contams will not be affected, as some insects won't be killed in the microwave. Go figure.


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InvisiblebodhisattaMDiscordReddit
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Re: Vacuum chamber as a pressure cooker? [Re: b92ma]
    #22288506 - 09/25/15 01:48 PM (8 years, 4 months ago)

it takes 8 hours to achieve SAL(sterility assurance level) on a quart jar of grain spawn with no pressure. it takes 90-120m at 15psi. if you try to sterilize with say -1 bar it would take days to sterilize if it even did sterilize at all


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OfflineKanadian
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Registered: 09/23/15
Posts: 27
Last seen: 7 years, 10 months
Re: Vacuum chamber as a pressure cooker? [Re: bodhisatta]
    #22288667 - 09/25/15 02:28 PM (8 years, 4 months ago)

Solid answer, not a big deal if I gotta buy one was just hoping to repurpose my shatter vac lol


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